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u-boot-krane/board/purism/librem5-devkit/librem5-devkit.env
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Guido GüntherandFabio Estevam 765ec2edd9 board: purism: Add support for the Librem5 devkit
Although it has similar naming the Librem 5 Devkit is a completely
different design from the Librem 5 phone. It uses an imx8mq SOM from
Emcraft, a separate HDMI port instead of DisplayPort, different USB-C
chip, panel, etc.

This is based on a Emcraft's SOM documentation, Purism's downstream fork
and the available schematics of the devkit.

Link: https://developer.puri.sm/Librem5/Development_Environment/Boards/imx8.html
Link: https://source.puri.sm/Librem5/dvk-mx8m-bsb
Co-authored-by: Angus Ainslie <angus@akkea.ca>
Co-authored-by: Manuel Traut <manut@mecka.net>
Signed-off-by: Manuel Traut <manut@mecka.net>
Tested-by: Manuel Traut <manut@mecka.net>
Signed-off-by: Guido Günther <agx@sigxcpu.org>
[fabio: Removed the  arch/arm/dts/Makefile  entry that does not apply and
it is not needed as the board uses OF_UPSTREAM]
Signed-off-by: Fabio Estevam <festevam@gmail.com>
2026-07-27 11:15:42 -03:00

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/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
boot_targets=mmc0 dhcp
bootmeths=efi extlinux script
bootm_size=0x10000000
console=ttymxc0,115200
fdt_addr_r=0x43000000
fdtfile=DEFAULT_FDT_FILE
initrd_addr=0x43800000
image=Image
kernel_addr_r=CONFIG_SYS_LOAD_ADDR
loadaddr=CONFIG_SYS_LOAD_ADDR
mmcautodetect=yes
mmcdev=CONFIG_ENV_MMC_DEVICE_INDEX
mmcpart=1
mmcroot=/dev/mmcblk0p1
scriptaddr=CONFIG_SYS_LOAD_ADDR
mmcargs=setenv bootargs console=${console} root=${mmcroot} rootwait rw
loadimage=load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}
loadfdt=load mmc ${mmcdev}:${mmcpart} ${fdt_addr_r} ${fdtfile}